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  • Articles: DFG German National Licenses  (2)
  • Electronic Resource  (2)
  • 125Te NMR  (1)
  • 2-Telluroimidazolines  (1)
  • Active centers  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 2047-2049 
    ISSN: 0009-2940
    Keywords: 2-Telluroimidazolines ; 125Te NMR ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Imidazole Chemistry, III[1].  -  2-Telluroimidazolines  -  Stable Tellurocarbonyl Compounds2-Telluroimidazolines 6 are obtained as stable solids from the imidazol-2-ylidenes 4 and tellurium in good yields. The X-ray structure of 6c reveals the relevance of the mesomeric structure 5 [d(C1 - Te) = 2.087(4) Å] which is confirmed by the upfield shift in the 125Te NMR spectra (dL 〈  - 150).
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0570-0833
    Keywords: Thiols ; Bioinorganic chemistry ; Active centers ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Thiolates are presently a subject of great interest in the chemistry of complexes involving transition-metal elements and soft ligands. The manifold electronic and steric capabilities offered by the monodentate ligands RS⊖ and the bidentate chelate ligands ⊖SRS⊖ have been used to stabilize a broad spectrum of mononuclear, oligomeric, and polymeric complexes with new and remarkable structures and properties. Impetus has especially been provided by the synthesis of polynuclear cagelike homo- and heteroleptic metal-sulfur frameworks, which can often be regarded as “molecular fragments” of the structures of inorganic sulfides. Thiolates and mixed sulfide-thiolates of the late open- and closed-shell 3d metals (Fe, Co, Ni, Cu, Zn) and some of their homologues (Au, Cd, Hg), as well as of Mo, are of particular importance as model complexes for biologically important metal centers coordinated by sulfur. They have played an important role in increasing our understanding of the structure, bonding, and function of the reactive centers in ferredoxins, rubredoxins, nitrogenases, blue copper proteins, metallothioneins, and antiarthritic drugs.
    Additional Material: 41 Ill.
    Type of Medium: Electronic Resource
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